Enhancing Low-Velocity Water Flow Energy Harvesting of Triboelectric–Electromagnetic Generator via Biomimetic-Fin Strategy and Swing-Rotation Mechanism
Source abstract
Abstract
A general problem is that the energy harvesting of low-velocity rivers closely related to human life is difficult. Herein, a soft-bionic-fin structure triboelectric–electromagnetic generator (SF-TEG) with swing-rotation mechanism is proposed. It consists of a bionic fin-type soft body and a power generation part including the triboelectric nanogenerator (TENG) and electromagnetic generator (EMG). Specifically, the soft body driven by the vortex effect acquires swing, which brings the TENG to obtain oscillation and then drives the EMG to realize water flow energy harvesting. The TENG and EMG attain the output voltages of 143 to 203 V and 4.6 to 7.7 V, respectively, under flow velocities from 0.34 to 0.96 m/s. The output voltages of the TENG and EMG retain about 98% and 100%, respectively, after 4 h of continuous work. Additionally, the SF-TEG can harvest water flow energy from open channels to power sensors to provide temperature, humidity, and light intensity for greenhouses.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Innovative Energy Harvesting Technologies · Advanced Materials and Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
School of Mechanical and Aerospace Engineering, Jilin University, Changchun, Jilin 130022, China
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
Funding
Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Beijing Municipality
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